Data table header descriptions |
ID_REF |
|
Block |
|
Column |
|
Row |
|
X |
X-coordinate of the center of the feature-indicator associated with the feature, where (0,0) is the top left of the image |
Y |
Y-coordinate of the center of the feature-indicator associated with the feature, where (0,0) is the top left of the image |
Dia. |
diameter in µm of the feature-indicator |
F635 Median |
median pixel intensity of feature for Cy5 channel |
F635 Mean |
mean pixel intensity of feature for Cy5 channel |
F635 SD |
Cy5 pixel intensity standard deviation |
B635 Median |
median Cy5 feature background intensity |
B635 Mean |
mean Cy5 feature background intensity |
B635 SD |
Cy5 background pixel intensity standard deviation |
% > B635+1SD |
percentage of feature pixels with intensities more than one standard deviation above the background pixel intensity, at wavelength #1 (635 nm, Cy5) |
% > B635+2SD |
percentage of feature pixels with intensities more than two standard deviations above the background pixel intensity, at wavelength #1 (635 nm, Cy5) |
F635 % Sat. |
percentage of pixel saturation within feature |
F532 Median |
median feature pixel intensity at wavelength #2 (532 nm, Cy3) |
F532 Mean |
mean feature background intensity at wavelength #2 (532 nm, Cy3) |
F532 SD |
standard deviation of the feature background intensity at wavelength #2 (532 nm, Cy3) |
B532 Median |
median feature background intensity at wavelength #2 (532 nm, Cy3) |
B532 Mean |
mean feature background intensity at wavelength #2 (532 nm, Cy3) |
B532 SD |
standard deviation of the feature background intensity at wavelength #2 (532 nm, Cy3) |
% > B532+1SD |
percentage of feature pixels with intensities more than one standard deviation above the background pixel intensity, at wavelength #2 (532 nm, Cy3) |
% > B532+2SD |
percentage of feature pixels with intensities more than two standard deviations above the background pixel intensity, at wavelength #2 (532 nm, Cy3) |
F532 % Sat. |
percentage of feature pixels at wavelength #2 (Cy3) that are saturated |
Ratio of Medians (635/532) |
ratio of the background subtracted median pixel intensity at the second wavelength (Cy3), to the background subtracted median pixel intensity at the first wavelength(Cy5) |
Ratio of Means (635/532) |
ratio of the arithmetic mean of the background subtracted raw pixel intensities at the second wavelength (Cy3), to the arithmetic mean of the background subtracted raw pixel intensities at the first wavelength (Cy5) |
Median of Ratios (635/532) |
median of the pixel-by-pixel ratios of pixel intensities that have had the median background intensity subtracted of wavelength 2 (Cy3) to wavelength one (Cy5) |
Mean of Ratios (635/532) |
arithmetic mean of the pixel-by-pixel ratios of the raw pixel intensities of wavelength 2 (Cy3) to wavelength 1 (Cy5) |
Ratios SD (635/532) |
standard deviation of the log of pixel intensity ratios |
Rgn Ratio (635/532) |
regression ratio is determined by computing a linear regression between the population of pixels represented by wavelength 1 and wavelength 2 |
Rgn R² (635/532) |
coefficient of determination provides a measure of the level of accuracy of the fit of the linear regression curve |
F Pixels |
number of feature pixels |
B Pixels |
number of background pixels |
Sum of Medians |
sum of the median of the pixel intensities at each wavelength, with the median background pixel intensity at each wavelength subtracted |
Sum of Means |
sum of the arithmetic mean of the pixel intensities at each wavelength, with the median background pixel intensity at each wavelength subtracted |
VALUE |
Log ratio (635/532) - base two logarithm of the ratio of medians |
F635 Median - B635 |
Cy5 median feature intensity subtracted by Cy5 median background intensity |
F532 Median - B532 |
Cy3 median feature intensity subtracted by Cy3 median background intensity |
F635 Mean - B635 |
Cy5 mean feature intensity subtracted by Cy5 mean background intensity |
F532 Mean - B532 |
Cy3 mean feature intensity subtracted by Cy3 mean background intensity |
Flags |
A value of -100 means that this spot was bad. A value of -75 means that the ID for this spot is empty. A value of -50 means that this spot cannot be aligned during analysis. A value of 0 or larger than 0 means that this spot passed the flagging screen but may still fail other quality tests. |
Normalize |
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